VEGAFLEX - APPLIED MEASUREMENT AND CONTROL...

VEGAFLEXGUIDED WAVE RADAR FOR LEVEL MEASUREMENT

VEGAFLEX 60 SERIES

Why Use GUIDED MICROWAVE RADAR?Are you tired of re-calibrating the 0-point on DP transmitters or capacitance probes? Are you tired of having false readings due to angle of repose, or dust during the fill and empty cycle?Operating by the use of electromagnetic microwave pulses, the VEGAFLEX guided microwave radar gauges will provide accuracy up to 3mm! In addition, once initially configured, the gauges will never need to be recalibrated, and will never experience 0 point drift or fluctuations due to specific gravity, temperature, dust, or pressure. This translates into less time spent on set-up, maintenance, and troubleshooting, and results in a worry-free installation that will perform beyond expectation.

Benefits & Features• 2-Wire/Loop-Powered• Applications: For use in liquids, solids, or interface applications• Flexible Mounting: Including NPT, ANSI flanges, and sanitary connections• Easy Set-up: Typical system set up in less than 5 minutes! Easy to use programming module or computer software makes set-up easy, and fast• No Re-calibration Required• Low Maintenance: With no moving parts, the VEGAFLEX guided microwave radar gauge will significantly reduce maintenance time and cost• Antenna: Detachable on rod and cable versions• Ease of Measurement: Able to measure during fill / empty phase• No Influence Due to Angle of Repose in Solids Applications• plics® compatible

4 :: VEGAFLEX 60 SERIES ::

Principle ofOPERATIONPULSE The VEGAFLEX emits a microwave pulse at a frequency of 2GHz. This pulse travels down to the product surface and is “guided” by a stainless steel cable or rod. When the pulse hits the surface of the product it is reflected back to the gauge.

TARGET The microwave pulses are reflected from a solid or liquid material. The pulse then returns up the probe to the gauge.

TIME The transit time of the microwave pulse that returns to the antenna is measured and used to calculate the distance to the target.

TYPES OF ANTENNASVEGAFLEX instruments are available with 3 types of antennas; a single rod, a cable, or a coaxial tube. The single rod is for liquids or solids, and is available in two thicknesses. The cable antenna is used for liquids or solids and is suitable for long range applications or measurement of heavier solids. The coaxial antenna is a small rod antenna contained inside an outer tube. This system creates a very efficient antenna and is for use with liquids only. The ability to choose from these antenna styles allows Ohmart/VEGA to customize a VEGAFLEX system to each individual application.

INDUSTRIESGuided Wave Radar Systems can be applied in virtually any industry. The VEGAFLEX excels at measurement in industries such as:

• Chemical• Petrochemical• Water and Wastewater• Pulp and Paper• Plastics

• Power• Food and Beverage• Cement• Asphalt• Marine

• Steel• Mining• And many more!

APPLICATIONSVirtually Unlimited.

Compare Verses Other Technologies: Guided wave radar has many benefits over traditional level measurement technologies. With no moving parts and easy to configure electronics, guided wave radar can eliminate many of the measurement and maintenance issues associated with DP cells, and mechanical float systems. With no influence from temperature or pressure shifts, and no errors caused by a shift in specific gravity, guided wave radar can reduce many of the measurement errors associated with capacitance probes, and ultrasonic based transmitters. In solids, the VEGAFLEX is able to measure during the fill and empty cycles, reducing common errors seen with ultrasonic-based sensors.

INTERFACE: Measure the interface between two liquids, or track both the top level of product and the interface. The VEGAFLEX 67 is able to reliably track interfaces in storage vessels, bridles, and other applications.

GENERAL LIQUIDS: VEGAFLEX is well suited for general liquid measurement. Vessels or tanks that require a 3/4" NPT connection are perfect for the VEGAFLEX.

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GRAINS: The VEGAFLEX is an ideal solution for the measurement of grains. Corn, wheat, and other grains can be reliably tracked without the worry of dust interfering with the measurement. Other possibilities include: animal feed, coffee beans, and sugar.

LIQUID GAS MEASUREMENT: Ideal for measuring liquid gasses such as propane, natural gas, butane, and other low dielectric materials, the coaxial antenna of the VEGAFLEX offers a high signal-to-noise ratio and a reliable measurement.


HIGH TEMPERATURE APPLICATIONS: Measure up to 752° F with the high temperature VEGAFLEX 66. Ideal for power plants, refineries, and other industries where high temperature measurement is needed.

APPLICATIONSContinued

CEMENT: The VEGAFLEX is ideally suited for measurement of finished cement. The VEGAFLEX provides a continuous and accurate measurement regardless of dust, or the filling process.

FLY ASH: Ideal for measurement of fly ash, the VEGAFLEX is successful in precipitation hoppers, discharge bins, storage vessels, and pneumatic conveying systems. Even the measurement of high temperature ash is possible with the Flex 66.

DISPLACER REPLACEMENT: Ideal for replacing existing mechanical devices, the VEGAFLEX 61 can fit into an existing displacer style bridle and provide measurement with no moving parts. A detachable rod antenna reduces the need for overhead clearance.

PLASTIC PELLETS: The contacting technology of the VEGAFLEX allows for the reliable measurement of plastic pellets. Available as a two-wire loop powered instrument, the VEGAFLEX is able to measure up to 60 meters (197 ft) from the mounting point.


MODELS& VERSIONSVEGAFLEX 60 SERIES

VEGAFLEX 60 Series gauges are available in several versions: single rod, cable, and coaxial antennas. All are available with outputs including 4-20mA, Profibus, and Foundation Fieldbus.™

VEGAFLEX 61

Applications: Liquids and light solidsAccuracy: +/- 5mm or .2"Process Connections: ¾" NPT (19mm), ANSI FlangesAntenna: Cable, RodTemperature Range: -40 to 150°C (-40 to 302°F)

VEGAFLEX 62

Applications: Liquids, and light or heavy solidsAccuracy: +/- 5mm or .2"Process Connections: 1½" NPT (38mm)Antenna: Cable, RodTemperature Range: -40 to 150°C (-40 to 302°F)

Industry Approvals VEGAFLEX 60 Series instruments are available with standard industry approval options including FM and CSA. Housing options to meet NEMA 4X, NEMA 4/7, NEMA 6P are available.

VEGAFLEX 65

Applications: LiquidsAccuracy: +/- 3mm or .12"Process Connections: ¾" NPT (19mm), ANSI FlangesAntenna: CoaxialTemperature Range: -40 to 150°C (-40 to 302°F)

VEGAFLEX 67

Applications: Liquids interface measurementAccuracy: +/- 10mm or .39"Process Connections: ¾" NPT (19mm), ANSI FlangesAntenna: Cable, Rod, CoaxialTemperature Range: -40 to 150°C (-40 to 302°F)

VEGAFLEX 66

Applications: High temperature and pressure for liquids and solidsAccuracy: +/- 5mm or .2"Process Connections: ¾" NPT (19mm), ANSI FlangesAntenna: Cable, Rod, CoaxialTemperature Range: -40 to 400°C (-40 to 752°F)

VEGAFLEX 63

Applications: Sanitary of corrosive liquids or solidsAccuracy: +/- 5 mm or .2"Process Connections: Tri-clamp, ANSI FlangesAntenna: Cable, RodTemperature Range: -40 to 150°C (-40 to 302°F)


InterfaceMEASUREMENTThe VEGAFLEX 67 has been developed specifically for interface measurement in liquids. Typical applications are measurements in: oil/water or solvents/water, where the upper product has a lower dielectric constant than the lower product.

Microwave pulses are guided down the antenna where an amount of the energy is reflected from the surface of the upper non-conductive product. The remaining energy passes through the upper product and is reflected from the interface of the two products. The two reflections are then able to be evaluated as level and interface.

Interface Measurement Guidelines:• It is only possible to measure one interface. In case of multiple interfaces

no measurement can be made.• The interface must have separation between the upper and lower product, i.e. no major emulsification or mixing.• The upper product must cover the interface by at least 4 inches for separation of the signals to occur.

Product Guidelines:

UPPER PRODUCT• The upper product must not be conductive.• The upper product must have a minimum dielectric constant (rod and cable version 1.7; coaxial version 1.4).• The dielectric constant should remain consistent.• There must be no foam on the surface creating a second interface.

LOWER PRODUCT• The dielectric constant of the lower product should be at least 10 higher than of the upper product (example: upper dielectric constant = 2 / lower dielectric constant = min. 12). The most ideal solution is that the lower product is conductive (e.g. water and water mixtures).

OUTPUT SIGNALVEGAFLEX 67 is available with all electronics (4...20mA/HART®, Profibus PA, Foundation Fieldbus™).

OPTION 1: Evaluation of the current signal (4...20mA)

The 4…20 mA signal of the analog sensor is allocated to the interface. As there is only one analog output signal, there is no indication of the overall level.

OPTION 2: Evaluation of the digital measuring signal (HART®, Profibus, Foundation Fieldbus™)

With digital communication the distance to the interface and the distance to the overall level are both available. Both measuring values can be adjusted in the control system. A VEGAMET 625, or similar multi-variable HART® device or system is required to process these signals. All measured values (level, interface and layer thickness) can then be processed and sent out as 4…20 mA signals.

110 VAC Power

Interface Level

Overall Level

Upper Layer Thickness


SIGNALConditioningThe VegaMet and VegaScan are ideal solutions for the needs of Vendor Managed Inventory (VMI), or a self-contained measurement system. Capable of a host of modern communication functions, the Met and Scan offer the perfect compliment to the VEGAFLEX Series. Features and functions include:

• Power and display of non-instrumented applications • Multiple sensor programming and data collection • Published measurement values to the internet, or a company LAN • E-mail of measured values • Data collection and transfer via RS232 or Modbus over TCP/IP • Local display • Programming via keypad or PC connect port

20-250 Volts, AC/DC

3x 4-20 mA Outputs

3x SPDT Relay Output

1x Fault Relay Output

Ethernet, RS232, Modbus/TCPIP

up to (15) HART Variables

up to (2) HART Variables

VEGAMET 624

VEGASCAN 693

VEGAMET 625

4-20 mA or (1) HART Variable

20-250 Volt, AC/DC

3x 4-20 mA Outputs

3x SPDT Relay Output



20-250 Volts, AC/DC




Level MeasurementMADE EASY.The Ideaplics® is a revolutionary concept in measurement technology. The idea behind plics® is that “easier is better.” The advances made by the plics® concept will allow our customers to specify, and program all of our instruments with ease. All plics® level measurement technologies from Ohmart/VEGA have been designed with common features including:

• The ability to view information in the instrument head or on a remote display.• The same housing options for all gauges: Plastic, Stainless Steel, Single Chamber Aluminum, and Dual Chamber Aluminum.

• Interchangeable programming methods for all devices: plicscom adjustment module, PACTware and a PC, or HART®.

• Plug-in electronic modules that are the same size, and easy to install, wire, and maintain.

INDICATING & ADJUSTMENT MODULE

HOUSINGS

ELECTRONICS

PROCESS FITTINGS

SENSOR TYPES

PLICSCOM

PLASTIC STAINLESS STEEL

SINGLE CHAMBER ALUMINUM

DUAL CHAMBER ALUMINUM

4-20mA HART® PROFIBUS PA FOUNDATION FIELDBUS

THREAD FLANGE SANITARY/TRI-CLAMP

LEVEL: RADAR ULTRASONIC GUIDED MICROWAVE

SWITCHING: VIBRATION VIBRATION CAPACATIVE

PRESSURE: PROCESS PRESSURE HYDROSTATIC

Programming & CONFIGURATIONPLICSCOMThe plicscom is a removable programming device for all plics® instruments. Push button programming with a large screen display allows easy access to the gauge. The plicscom is able to copy and paste sensor data to make setting up multiple sensors easy. Manufacturing data, diagnostic data, and all set up parameters can be viewed and accessed via the plicscom. The same plicscom is able to configure any instrument that is plics compatible.

PLICSCOM FEATURES• Splash proof even with cover open• Mounting in 90° steps• Trend curve displayed• Data memory capable• For use in gauge head, or remote display• 4-key easy adjustment• Suitable for all instrument series• Echo curve displayed

HART™ HANDHELD TERMINALThe VEGAFLEX 60 series models are available with HART™ outputs and are fully compatible with AMS and multidrop capability. Programming is achieved through a handheld terminal and general device parameters. No special device description (DD) required. Programming functions are limited to generic HART™ commands.


PACTware FDT COMPUTER CONFIGURATION SOFTWARESOFTWARE REVOLUTION:

PACTware is a field device tool, commonly referred to as an “FDT,” which is based on field device tool standard 1.2. An FDT is a software program that provides a frame environment for use on a computer or a laptop. This frame environment is used to open and run configuration programs for field instrumentation. These configuration programs are called Device Type Managers (DTMs), and are offered by various instrumentation manufacturers.

DTM COLLECTION:

All Ohmart/VEGA plics® instruments have a device type manager (DTM) program that runs within PACTware. The DTM provides many benefits including:

• Easy to use windows program with graphic explanations.• Visualization of echo curves, trends, & vessel configuration parameters.• The ability to store, review, save and e-mail data on instrument

configuration.

VEGADIS 61 REMOTE DISPLAYThe VEGADIS 61 remote display provides visualization up to 82' from a gauge. It is plics® ready and provides an access port for PACTware programming, or plicscom use.

ELECTRONICSVEGAFLEX electronics are available in multiple configurations including:

• 2-Wire loop powered• 4-wire power• General purpose, intrinsically safe, or explosion proof ratings• Profibus, Foundation Fieldbus, and HART™ AMS compatible


VEGAFLEX 60At a Glance

VEGAFLEX 61 62 63 65 66 67

frequency 2 GHz 2 GHz 2 GHz 2 GHz 2 GHz 2 GHz

accuracy +/- 5mm +/- 5mm +/- 5 mm +/- 3mm +/- 5mm +/- 10mm or .2" or .2" or .2" or .12" or .2" or .39"

liquids Yes Yes Yes Yes Yes Yes

solids Yes Yes Yes No Yes No

interface No No No No No Yes

rod antenna Yes Yes Yes No Yes Yes

cable antenna Yes Yes Yes No Yes Yes

coaxial antenna No No No Yes Yes Yes

maximum measuring range: rod 13' 20' 13' N/A 13' 13'

maximum measuring range: cable 105' 197' 105' N/A 105' 105'

maximum measuring range: coaxial N/A N/A N/A 20’ 20’ 20’

temp. range -40 to -40 to -40 to -40 to -20 to -40 to 302°F 302°F 302°F 302°F 752°F 302°F

plics® compatible Yes Yes Yes Yes Yes Yes

available two wire Yes Yes Yes Yes Yes Yes

replacement for VEGAFLEX 51 52 N/A N/A N/A N/A

4170 Rosslyn Drive

Cincinnati, Ohio 45209

toll free: 1.800.FOR.LEVEL

telephone: 513.272.0131

fax: 513.272.0133

web: www.ohmartvega.com

e-mail: [email protected]

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VEGAFLEX - APPLIED MEASUREMENT AND CONTROL...

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